To start a recording, 3 options are available :
•Start on button : The recording will start as soon as the button 
is clicked.
For the next 2 options, first select the options then click on . The recording will start once the values are reached.
•Start on Level: (0 db by default) Can be modified. Type a value in db.
•Start on Time : Select the time when to start the recording.
To stop a recording, 3 options are also available.
•Stop on Button : Click on 
. The recording is stopped.
•Stop on Level : Once the level is reached, the recording stops.
•Stop on Duration : Once the duration is reached, the recording stops.
Once the recording starts, it's starts being saved in the database. It means that, once the recording is stopped, it can be seen right away in the Browser (if the tab where you saved your recording is shown in the Browser)
And if the workstation is shut down accidentally, the recording is saved until the workstation's stop.